This replacement filter cartridge comes with a technical specification Filbur# FC-9899, Pleatco # No, Unicel # FS-3053 and OEM # FS3053. This product is a high performance filter cartridge. This state of the art Starite system 3 model S8D110 SD series DE filter SET is of superior quality as per industry standards. This filter efficiently provides you dust, sand and worm free clean and clear water solution for your pools and spas. The best in the industry this product matches all your water purifying needs and offers quality with cleanliness and hygiene par excellence.